I have updated the first post of each of my extension threads with compatibility information regarding Tuesday's upcoming update.
At this time, around half of my extensions appear to be compatible but have not had a thorough code check performed. The other half are certainly not.
Live Hitpoints v2.0 is now released, but should not be used until Tuesday the 16th unless you're on the Test channel.
Upgrade NPC Actions v1.6 is compatible and should also work with current version. It now also works for NPCs you add to the combat tracker via drag/drop, rather than just via encounters.
Spell Formatting v1.4 is compatible and also works with current version. It also should work better now regarding upgrading spells for new users.